CAJ | 학술논문

为了能更好地建立实验室种群,对沟眶象( Eucryptorrhynchus chinensis Olivier)成虫取食不同材料(臭椿萌生苗、2~3年生臭椿枝条、苹果切块、10%蜂蜜水、清水)条件下的雌虫产卵前期、雌虫产卵量、卵孵化率等繁殖力指标进行了测定. 结果表明:沟眶象成虫出土后需要补充营养才可以产下可育卵,饲喂清水时可以产下极少量卵,但无法孵化. 沟眶象取食臭椿萌生苗、2~3年生枝条时繁殖力较大,其产卵总量和孵化率分别为93~152粒、74. 60%和101~156粒、68. 42%,极显著高于取食苹果和蜂蜜水的处理(分别为13~49粒、41. 67%和2~36粒、15. 83%). 因此,室内以臭椿萌生苗和2~3年生枝条饲养沟眶象成虫,野外则可以萌生苗诱集和灭杀成虫.
위료능경호지건립실험실충군,대구광상( Eucryptorrhynchus chinensis Olivier)성충취식불동재료(취춘맹생묘、2~3년생취춘지조、평과절괴、10%봉밀수、청수)조건하적자충산란전기、자충산란량、란부화솔등번식력지표진행료측정. 결과표명:구광상성충출토후수요보충영양재가이산하가육란,사위청수시가이산하겁소량란,단무법부화. 구광상취식취춘맹생묘、2~3년생지조시번식력교대,기산란총량화부화솔분별위93~152립、74. 60%화101~156립、68. 42%,겁현저고우취식평과화봉밀수적처리(분별위13~49립、41. 67%화2~36립、15. 83%). 인차,실내이취춘맹생묘화2~3년생지조사양구광상성충,야외칙가이맹생묘유집화멸살성충.
Eucryptorrhynchus chinensis Olivier ( Coleoptera:Curculionidae) is an important root?boring pest of Ailanthus altissima Swingle, threatening to the trees of the shelterbelts in Ningxia. In order to provide clues to the establishment of laboratory population, virgin males and females E. chinensis were fed with different materials ( seedling sprout, 2-3 years old branch, diced apple, 10% hydromel and clean water as control) to analyze the effect of feeding material to its fecundity. In this study, during preoviposition period, the amount of eggs and hatching rate were considered as indexes of the fecundity of the weevil. It showed that E. chinensis need nutrients supply to reproduce. The difference of preoviposi?tion period was not significant, while the overall amount of the eggs and their hatching rate of the ones fed with seedling sprout and 2-3 years old branch ( amount of eggs is 93-152, hatching rate is 74. 60% and amount of eggs is 101-156, hatching rate is 68. 42%, respectively) were significantly higher than that of diced apple and 10% hydromel( amount of eggs is 13-49, hatching rate is 41.67%, and amount of eggs is 2-36, hatching rate is 15.83%, respectively) . In con?trol treatment, only several eggs were laid by two females and they could not hatch out successfully. It suggested that E. chinensis could reach the largest fecundity when fed with the material of A. altissima. Specific suggestions were put for?ward as the follows:① use the seedling sprouts and 2-3 years old branches as feeding materials for the rearing of E. chinensis in laboratory;② set the seedling sprouts as baits and spray pesticides to control E. chinensis during its occur?rence in field.